feat: make --debug imply --no-tty

[qweeah]

What this PR does / why we need it:
This PR makes --debug flag imply --no-tty flag.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Related to #940

Please check the following list:

• Does the affected code have corresponding tests, e.g. unit test, E2E test?
• Does this change require a documentation update?
• Does this introduce breaking changes that would require an announcement or bumping the major version?
• Do all new files have an appropriate license header?

[codecov-commenter]

Codecov Report

Merging #1162 (512e36b) into main (5d95881) will decrease coverage by 0.06%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main    #1162      +/-   ##
==========================================
- Coverage   79.93%   79.88%   -0.06%     
==========================================
  Files          65       65              
  Lines        3519     3520       +1     
==========================================
- Hits         2813     2812       -1     
- Misses        492      494       +2     
  Partials      214      214              

Files	Coverage Δ
cmd/oras/internal/option/common.go	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

[shizhMSFT]

LGTM